Method getModifyContext

packages/core/src/tools/edit.ts:503–543

(_: AbortSignal)

  }

  getModifyContext(_: AbortSignal): ModifyContext<EditToolParams> {
    return {
      getFilePath: (params: EditToolParams) => params.file_path,
      getCurrentContent: async (params: EditToolParams): Promise<string> => {
        try {
          return fs.readFileSync(params.file_path, 'utf8');
        } catch (err) {
          if (!isNodeError(err) || err.code !== 'ENOENT') throw err;
          return '';
        }
      },
      getProposedContent: async (params: EditToolParams): Promise<string> => {
        try {
          const currentContent = fs.readFileSync(params.file_path, 'utf8');
          return applyReplacement(
            currentContent,
            params.old_string,
            params.new_string,
            params.old_string === '' && currentContent === '',
          );
        } catch (err) {
          if (!isNodeError(err) || err.code !== 'ENOENT') throw err;
          return '';
        }
      },
      createUpdatedParams: (
        oldContent: string,
        modifiedProposedContent: string,
        originalParams: EditToolParams,
      ): EditToolParams => {
        const content = originalParams.new_string;
        return {
          ...originalParams,
          ai_proposed_string: content,
          old_string: oldContent,
          new_string: modifiedProposedContent,
          modified_by_user: true,
        };
      },
    };
  }
}